Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC
文献类型：期刊论文
| 作者 | Yang, JM ; Ren, J1,2; Hikasa, KI; Duan, GH; Wu, L5
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2018 |
| 卷号 | 98期号:1页码:15010 |
| ISSN号 | 2470-0010 |
| 关键词 | WELL-TEMPERED NEUTRALINO SPLIT SUPERSYMMETRY HADRON COLLIDERS MSSM LIMIT MODEL MASS |
| DOI | 10.1103/PhysRevD.98.015010 |
| 英文摘要 | In the minimal supersymmetric standard model (MSSM), the bino-wino coannihilation provides a feasible way to accommodate the observed cosmological dark matter (DM) relic density. However, such a scenario usually predicts a very small DM-nucleon scattering cross section that is below the neutrino floor, and can not be tested by DM direct detection experiments. In this work, we investigate the discovery potential of this bino-wino co-annihilation region by searching for the soft dilepton events from the process pp -> chi(0)(2)(-> l(+)l(-)chi(0)(1))chi(+/-)(1) + jets at the LHC. We find that the mass of the winolike chi(0)(2) can be probed up to about 310 (230) GeV at 2 sigma (5 sigma) level for an integrated luminosity L = 300 fb(-1). In the future HL-LHC with 3000 fb(-1) luminosity, the corresponding mass limits can be pushed up to 430 (330) GeV. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22869]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 4.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan 5.Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, JM,Ren, J,Hikasa, KI,et al. Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC[J]. PHYSICAL REVIEW D,2018,98(1):15010. |
| APA | Yang, JM,Ren, J,Hikasa, KI,Duan, GH,&Wu, L.(2018).Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC.PHYSICAL REVIEW D,98(1),15010. |
| MLA | Yang, JM,et al."Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC".PHYSICAL REVIEW D 98.1(2018):15010. |
入库方式： OAI收割
来源：理论物理研究所
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